| """Terminal utilities.""" | 
 |  | 
 | # Author: Steen Lumholt. | 
 |  | 
 | from termios import * | 
 |  | 
 | __all__ = ["setraw", "setcbreak"] | 
 |  | 
 | # Indexes for termios list. | 
 | IFLAG = 0 | 
 | OFLAG = 1 | 
 | CFLAG = 2 | 
 | LFLAG = 3 | 
 | ISPEED = 4 | 
 | OSPEED = 5 | 
 | CC = 6 | 
 |  | 
 | def setraw(fd, when=TCSAFLUSH): | 
 |     """Put terminal into a raw mode.""" | 
 |     mode = tcgetattr(fd) | 
 |     mode[IFLAG] = mode[IFLAG] & ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON) | 
 |     mode[OFLAG] = mode[OFLAG] & ~(OPOST) | 
 |     mode[CFLAG] = mode[CFLAG] & ~(CSIZE | PARENB) | 
 |     mode[CFLAG] = mode[CFLAG] | CS8 | 
 |     mode[LFLAG] = mode[LFLAG] & ~(ECHO | ICANON | IEXTEN | ISIG) | 
 |     mode[CC][VMIN] = 1 | 
 |     mode[CC][VTIME] = 0 | 
 |     tcsetattr(fd, when, mode) | 
 |  | 
 | def setcbreak(fd, when=TCSAFLUSH): | 
 |     """Put terminal into a cbreak mode.""" | 
 |     mode = tcgetattr(fd) | 
 |     mode[LFLAG] = mode[LFLAG] & ~(ECHO | ICANON) | 
 |     mode[CC][VMIN] = 1 | 
 |     mode[CC][VTIME] = 0 | 
 |     tcsetattr(fd, when, mode) |